The Scorpian God-Eternal

First Strike, Wither, Menace
When The Scorpion God-Eternal enters the battlefield all creatues target opponent controls
get a -1/-1 counter on them.
Whenever a creature with a counter on it dies
draw a card and lose 1 life.
At the beginning of the end step proliferate.
When The Scorpion God-Eternal dies or is put
into exile from the battlefield, you may put it
into its owner's library third from the top.